Google Git
Sign in
webkit / WebKit / 6299032af29d842956f6cbc7ece166393ae029e8 / . / PerformanceTests / CSS / PseudoClassSelectors.html
blob: 289b77887218d67294e46acc5e7a17a59b0ae02d [file] [log] [blame]
<!DOCTYPE html>
<html>
<body>
<div id="test-target">
<div>
<div></div>
<div>
<p></p>
<p></p>
<p></p>
</div>
<div></div>
</div>
<div>
<div>
<p></p>
</div>
</div>
<p></p>
<p></p>
<p></p>
<p></p>
</div>
<script src="../resources/runner.js"></script>
<script>
PerfTestRunner.measureRunsPerSecond({
description: "This benchmark tests CSS Selector performance with querySelector().",
run: function() {
for (var i = 0; i < 100; i++) {
document.querySelector("p:first-child");
document.querySelector("p:last-child");
document.querySelector("p:first-of-type");
document.querySelector("p:last-of-type");
document.querySelector("p:nth-child(4n+3)");
document.querySelector("p:nth-last-child(4n+3)");
document.querySelector("p:nth-of-type(4n+3)");
document.querySelector("p:nth-last-of-type(4n+3)");
}
}
});
</script>
</body>
</html>